APA

Davis I. L., . (1972). A field guide to the birds of Mexico and Central America. Austin, Texas: University of Texas Press.

Chicago

Davis Irby L, . 1972. A field guide to the birds of Mexico and Central America. Austin, Texas: University of Texas Press.

Harvard

Davis I. L., . (1972). A field guide to the birds of Mexico and Central America. Austin, Texas: University of Texas Press.

MLA

Davis Irby L, . A field guide to the birds of Mexico and Central America. Austin, Texas: University of Texas Press. 1972.